An ideal environment for the Betta is a well-filtered aquarium that holds a steady temperature of between 75° and 86°F. For best care, Betta splendens should be kept singularly in aquariums of at least 5 gallons in size or with suitable, peaceful tank mates. It also prefers a variety of hiding places amongst the foliage of freshwater plants. Therefore, having an appropriately-sized aquarium with a filter and heater is essential for the proper care of these otherwise hardy and colorful freshwater aquarium fish.
The Betta can be bred in the home aquarium. For breeding purposes, males and females can be temporarily housed together. Once laid by the female, the eggs are placed inside a bubblenest and tended by the male Betta. Fry appear in about 24 hours and must be fed very small food initially, such as crushed or powdered flakes and newly hatched brine shrimp. Fry will also take finely chopped hard-boiled egg yolk.
Provide the Betta with a carnivore diet consisting of a quality flake food, frozen or freeze dried bloodworms and brine shrimp.